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31031143410 = 23516716213821
BaseRepresentation
bin11100111001100110…
…011010101111110010
32222002121120102012210
4130321212122233302
51002022433042120
622131105032550
72145660236601
oct347146325762
988077512183
1031031143410
11121842a9373
126020325756
132c06bb7827
141705381a38
15c1940cce0
hex73999abf2

31031143410 has 64 divisors (see below), whose sum is σ = 74986539264. Its totient is φ = 8218195200.

The previous prime is 31031143391. The next prime is 31031143471. The reversal of 31031143410 is 1434113013.

It is a super-2 number, since 2×310311434102 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8119300 + ... + 8123120.

It is an arithmetic number, because the mean of its divisors is an integer number (1171664676).

Almost surely, 231031143410 is an apocalyptic number.

31031143410 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31031143410 is an abundant number, since it is smaller than the sum of its proper divisors (43955395854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31031143410 is a wasteful number, since it uses less digits than its factorization.

31031143410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31031143410 its reverse (1434113013), we get a palindrome (32465256423).

The spelling of 31031143410 in words is "thirty-one billion, thirty-one million, one hundred forty-three thousand, four hundred ten".

Divisors: 1 2 3 5 6 10 15 30 167 334 501 835 1002 1621 1670 2505 3242 3821 4863 5010 7642 8105 9726 11463 16210 19105 22926 24315 38210 48630 57315 114630 270707 541414 638107 812121 1276214 1353535 1624242 1914321 2707070 3190535 3828642 4060605 6193841 6381070 8121210 9571605 12387682 18581523 19143210 30969205 37163046 61938410 92907615 185815230 1034371447 2068742894 3103114341 5171857235 6206228682 10343714470 15515571705 31031143410